# Reaction Time vs Block Tower!

The clearest difference is in-app purchases: Block Tower! at none against Reaction Time's 1. Reaction Time's advantage is ads (none vs shown) and device support (5 vs 3). On price and iOS requirement there is nothing between them.

Both are free to download. Reaction Time sells 1 one-off in-app purchase. Block Tower! asks for nothing beyond the download.

## The numbers

| Metric | Reaction Time | Block Tower! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | — |
| Size | 10 MB | 42 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KidDotCo](https://appshunter.io/developer/819246599) | [Nicolas Meyer](https://appshunter.io/developer/1833464259) |

## What reviewers say

### Reaction Time

[App page](https://appshunter.io/ios/app/reaction-time-tap-zero-zero/id1090740861)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Can You Find The Cheese? | $1.99 | one-time |


### Block Tower!

[App page](https://appshunter.io/ios/app/block-tower/id6759826287)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reaction Time free?

Reaction Time is free to download, with in-app purchases available.

### Is Block Tower! free?

Block Tower! is free to download, with no in-app purchases.

### Do Reaction Time or Block Tower! have ads?

Block Tower! shows ads; Reaction Time does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*